Window-screen



(No Madel.)

C. C. WHEELER.

WINDOW SCREEN.

No. 511,106.v I

yPatented Deo. 19, 1893.

mon. D. c.

me Amun UNITED STATES LPATENT OFFICE. A*

CHARLES C. WHEELER, OF MARYSVILLE, KANSAS.

WlNDOW-SCREEN.

SPECIFICATION forming part of Letters Patent N o. 511,106, dated December 19, 1893.

Application'iiled August 17, 1893. Serial No, 483.332. (No model.)

To @EL whom zit may concern:

Be it known that I, CHARLES C. WHEELER, of Marysville, in the county of Marshall and State of Kansas, have invented a new and useful Improvement in Window-Screens, of which the following is a specilication.

My invention relates to an improvement in window screens in which a movable sash section extending along one of the edges of the screen sash is positively moved toward and away from the adjacent wall of the surrounding frame to make a tight closure and secure the screen in position, the joint between the stationary and movable parts of the sash being covered by an overlapping lip attached to the xed sash section upon one orboth of the sides of the sash.

A practical embodiment of my invention is represented iu the accompanying drawings, in which- Figure l is a view of the screen adjusted within a window frame in front of the plane in which the window sash moves up and down. Fig. 2 is a transverse section through the line 06,00 of Fig. l, and Fig. 3 is a view of the screen in detail, the side provided with the movable sash section being shown in section to disclose the adjusting devices and their connections with both the movable and fixed sash sections.

The window sill is denoted by A, the side frames by c and the lower portion of the window sash within the frame by B.

The screen frame is of rectangular form, its opposite sides being denoted by C and C', its top by C2 and its bottom by C3. It may be provided, as is usual,with Wire gauze stretched across it and permanently fixed to the frame. One side of the screen frame, in the present instance the side C, is provided with a movable section c extending along its outer edge from top to bottom. The movable section c is iitted with an easy sliding motion between two lips D, D which are fixed at one edge to the outer opposite edges of the side C of the sash'and project thence outwardly, parallel with each other. The lips D,D may be formed of any suitable material, butl prefer to form them of thin metal-such for example as sheet brass-and to let them into the opposite sides of the frame C so that their outer faces shall be iiush with the outer faces of the frame.

Thumb screws E and E extend through the frame C from its inner to its outer edge and are engaged in threaded socket pieces or nuts e, e fixed in the outer faces of the side C. The said thumb screws are provided with shoulders eiashort distance from their points which shoulders are adapted to engagebearing plates F, F fixed to the inner face of the movable strip c, while the points of the screws extend through perforations in the plates and are locked either by upsetting their ends, by cross pins or other suitable means so that they cannot be withdrawn from the plates F, F but may readily rotate in the perforations in said plates through which they extend.

To adjust the screen to the Window frame, it may be placed within the frame in proximity to the path along which the Window sash slides,and by turning the thumb screws, the movable piece c may be forced outwardly between thelips D, Dl until the screen frame presses snugly against the opposite sides of the window frame. As the face of the screen frame toward the window sash is straight with the exception of the slight thickness of the inner lip D (when such inner lip is employed) and, as the thickness of the lip is not sufficient to form an opening for the access of insects, the screen will form a tight closure in front of the open window, while the window may be raised and lowered at pleasure without removing the screen if so desired. If, on the other hand, it be desired to place the screen beneath the window sash, it may be so placed and adjusted as above set forth. Because of the engagement of the thumb screws with the movable strip c and their screwthreaded engagements with the fixed side C, it follows that in whatever position the movable strip is adj usted, by turning of the thumbscrews, it will be held in that position until the screws are further manipulated so that the screen maybe inserted and removed at pleasure in windows where the sashes are not held suspended by weights, as is common in less expensive houses, Without the difficulty and annoyance which are experienced where the movable extension of the frame is actuated by springs which tend at all times to press it outwardly.

The screen, as above constructed, is well adapted to use in connection with windows IOO which slidehorizontallyas well as those which same time move the movable section posimove vertically and it may be manipulated tively toward and away from the stationary 15 with the greatest ease by any one capable of section as the screw is advanced or caused to lifting it into position Whether skilled or unrecede in its threaded socket and a thin lip 5 skilled. fixed to the stationary frame and overlapping What I claim isthe joint between the stationary and lmov- A window screen comprising afi-ame across able frame sections, on the side adjacent to zo which the screen materialis stretched, a movthe Window sash substantially as setforth. able frame section extending along one side A fr 1o of the screen frame, screws engaged in screw- CHARLES C' V' HEELER threaded nuts or sockets in the stationary side lVitnesses: of the frame and locked to the said movable FREDK. HAYNES, frame section so as to turn freely and at the IRENE B. DECKER. 

